Rooftop and Ground-Mounted Solar

Our Services

Individual power plants and partnership projects for businesses

For rooftop and ground-mounted solar, we operate with a customized service package. At the core of our operations are always the business needs and objectives of our partners. We provide full support for utilizing solar energy.

Solar power plants for roofs and ground according to your needs

Wisol-suunnittelu

Site visits and preliminary studies

Through preliminary studies and consultation, we increase understanding of the key impacts of implementing solar energy at each specific site.

Read more about our design services »

kattovoimala layout

Layout design and optimization

A properly designed power plant withstands not only economic scrutiny but also fire, operational, and maintenance safety perspectives.

Read more about our design services »

wisol-asennus

Installation and project management

Professional project management ensures that installations proceed efficiently with proper working methods and installation practices that meet regulations.

Learn more about our operations »

Mounting solutions

When selecting mounting solutions, it is important to identify the site-specific environmental conditions in addition to the installation location. Finnish-made mounting solutions guarantee a reliable result.

Read more about our mounting solutions »

Installation sites

Residential properties

Commercial properties

Industrial buildings

Solar parks

Acquiring a solar power plant

With Wisol’s collaboration model, you get all services customized to your needs

1. Needs assessment

  • Assessment phase together with the client

2. Technical and economic assessment of the plant

  • Verifying the suitability of the installation site
    • Roof inspection / soil investigations
  • Ensuring grid connectivity
  • Yield calculations
  • Profitability calculations

3. Design

  • Panel field design
    • Wind and snow load calculations
    • Fire safety
    • Operational safety
    • Maintainability
  • Cable route design
    • Fire and operational safety
  • Electrical design
    • Possible switchboard modifications

4. Implementation design

  • Workplace safety plans
  • Fall protection plans
  • Hot work permits and plans
  • Lifting work plans
  • Street permits and traffic arrangements
  • Scheduling and communications

5. Installation

  • Kick-off meeting
  • Fencing
  • Lifting and logistics work
  • Mechanical installation
  • DC cabling: circuit diagram verification, cable routes, penetrations
  • AC work: inverter installation, wiring, safety switches, emergency stop switches
  • Cabling to main distribution board
  • Measurements and inverter commissioning
  • System commissioning
  • System commissioning report

6. Site handover

  • Inspection reports
  • Site photos
  • Product data sheets
  • Maintenance instructions

Good to know about rooftop solar

In rooftop solar projects, the size of the plant is often determined by the required energy as well as the roof orientation and available roof area.

Good to know about ground-mounted solar

In ground-mounted solar projects, the soil determines the foundation method for the racks. Site-specific screw pile selection works as a solution in most cases. On hard soil sites, the foundation can be implemented on concrete.

Our Clients

Wisol and NYAB have jointly launched a large-scale solar power plant construction project in Utajärvi, Northern Ostrobothnia. The exceptionally large solar park covers approximately 150 hectares, equivalent to about 200 football fields.
We installed solar panels for a 100-kilowatt solar energy system on the roof of an industrial hall in Eura. The main contractor for the project was PlayGreen Finland Oy.
We delivered properly dimensioned mechanics installed at the Kemiönsaari 2-megawatt solar power plant. The varying terrain posed particular challenges for the mechanical installation, but Wisol's screw pile technology achieved an extremely solid result.

Want to hear more?

Get in touch, and let's build a sustainable and efficient solar energy solution together.

Aada-Maria Lauri

Sales Manager, Components and Wholesale

tel. 044 333 1371

Peter Richter

Key Account Manager

tel. 040 702 4495

Jouni Tikka

Energy Specialist

tel. 045 355 8558

Emmi Laine

Product Manager

tel. 044 507 3431

Our Services

Knowledge of terrain and mounting solutions in solar park projects creates sustainable conditions for optimizing design and implementation.
Solar power plant projects tailored to site-specific conditions and prevailing regulations. From preliminary studies to implementation design and final reporting.
Domestic mounting solutions designed for northern wind and snow loads. Mounting solutions for ground, rooftop, and wall installations with long product warranties.

Passionate about safe solutions for solar power plants

We know Finnish roofs, Nordic weather conditions, and soil requirements

Our goal is to develop solar energy industry standards and quality requirements, both in terms of product durability and safety as well as installation methods. With us, you are guaranteed a weather-resistant mounting solution designed specifically for your site.